src/mesa/state_tracker/st_atom_image.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2016 Ilia Mirkin. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  **************************************************************************/
  26
  27 #include "main/imports.h"
  28 #include "program/prog_parameter.h"
  29 #include "program/prog_print.h"
  30 #include "compiler/glsl/ir_uniform.h"
  31
  32 #include "pipe/p_context.h"
  33 #include "pipe/p_defines.h"
  34 #include "util/u_inlines.h"
  35 #include "util/u_surface.h"
  36
  37 #include "st_cb_texture.h"
  38 #include "st_debug.h"
  39 #include "st_texture.h"
  40 #include "st_context.h"
  41 #include "st_atom.h"
  42 #include "st_program.h"
  43 #include "st_format.h"
  44
  45 static void
  46 st_bind_images(struct st_context *st, struct gl_shader *shader,
  47               unsigned shader_type)
  48 {
  49    unsigned i;
  50    struct pipe_image_view images[MAX_IMAGE_UNIFORMS];
  51    struct gl_program_constants *c = &st->ctx->Const.Program[shader->Stage];
  52
  53    if (!shader || !st->pipe->set_shader_images)
  54       return;
  55
  56    for (i = 0; i < shader->NumImages; i++) {
  57       struct gl_image_unit *u = &st->ctx->ImageUnits[shader->ImageUnits[i]];
  58       struct st_texture_object *stObj = st_texture_object(u->TexObj);
  59       struct pipe_image_view *img = &images[i];
  60
  61       if (!stObj ||
  62           !st_finalize_texture(st->ctx, st->pipe, u->TexObj) ||
  63           !stObj->pt) {
  64          memset(img, 0, sizeof(*img));
  65          continue;
  66       }
  67
  68       img->resource = stObj->pt;
  69       img->format = st_mesa_format_to_pipe_format(st, u->_ActualFormat);
  70       if (stObj->pt->target == PIPE_BUFFER) {
  71          unsigned base, size;
  72          unsigned f, n;
  73          const struct util_format_description *desc
  74             = util_format_description(img->format);
  75
  76          base = stObj->base.BufferOffset;
  77          assert(base < stObj->pt->width0);
  78          size = MIN2(stObj->pt->width0 - base, (unsigned)stObj->base.BufferSize);
  79
  80          f = (base / (desc->block.bits / 8)) * desc->block.width;
  81          n = (size / (desc->block.bits / 8)) * desc->block.width;
  82          assert(n > 0);
  83          img->u.buf.first_element = f;
  84          img->u.buf.last_element  = f + (n - 1);
  85       } else {
  86          img->u.tex.level = u->Level + stObj->base.MinLevel;
  87          if (stObj->pt->target == PIPE_TEXTURE_3D) {
  88             if (u->Layered) {
  89                img->u.tex.first_layer = 0;
  90                img->u.tex.last_layer = u_minify(stObj->pt->depth0, img->u.tex.level) - 1;
  91             } else {
  92                img->u.tex.first_layer = u->_Layer;
  93                img->u.tex.last_layer = u->_Layer;
  94             }
  95          } else {
  96             img->u.tex.first_layer = u->_Layer + stObj->base.MinLayer;
  97             img->u.tex.last_layer = u->_Layer + stObj->base.MinLayer;
  98             if (u->Layered && img->resource->array_size > 1) {
  99                if (stObj->base.Immutable)
 100                   img->u.tex.last_layer += stObj->base.NumLayers - 1;
 101                else
 102                   img->u.tex.last_layer += img->resource->array_size - 1;
 103             }
 104          }
 105       }
 106    }
 107    st->pipe->set_shader_images(st->pipe, shader_type, 0, shader->NumImages,
 108                                images);
 109    /* clear out any stale shader images */
 110    if (shader->NumImages < c->MaxImageUniforms)
 111       st->pipe->set_shader_images(
 112             st->pipe, shader_type,
 113             shader->NumImages,
 114             c->MaxImageUniforms - shader->NumImages,
 115             NULL);
 116 }
 117
 118 static void bind_vs_images(struct st_context *st)
 119 {
 120    struct gl_shader_program *prog =
 121       st->ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
 122
 123    if (!prog)
 124       return;
 125
 126    st_bind_images(st, prog->_LinkedShaders[MESA_SHADER_VERTEX], PIPE_SHADER_VERTEX);
 127 }
 128
 129 const struct st_tracked_state st_bind_vs_images = {
 130    "st_bind_vs_images",
 131    {
 132       0,
 133       ST_NEW_VERTEX_PROGRAM | ST_NEW_IMAGE_UNITS,
 134    },
 135    bind_vs_images
 136 };
 137
 138 static void bind_fs_images(struct st_context *st)
 139 {
 140    struct gl_shader_program *prog =
 141       st->ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT];
 142
 143    if (!prog)
 144       return;
 145
 146    st_bind_images(st, prog->_LinkedShaders[MESA_SHADER_FRAGMENT], PIPE_SHADER_FRAGMENT);
 147 }
 148
 149 const struct st_tracked_state st_bind_fs_images = {
 150    "st_bind_fs_images",
 151    {
 152       0,
 153       ST_NEW_FRAGMENT_PROGRAM | ST_NEW_IMAGE_UNITS,
 154    },
 155    bind_fs_images
 156 };
 157
 158 static void bind_gs_images(struct st_context *st)
 159 {
 160    struct gl_shader_program *prog =
 161       st->ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
 162
 163    if (!prog)
 164       return;
 165
 166    st_bind_images(st, prog->_LinkedShaders[MESA_SHADER_GEOMETRY], PIPE_SHADER_GEOMETRY);
 167 }
 168
 169 const struct st_tracked_state st_bind_gs_images = {
 170    "st_bind_gs_images",
 171    {
 172       0,
 173       ST_NEW_GEOMETRY_PROGRAM | ST_NEW_IMAGE_UNITS,
 174    },
 175    bind_gs_images
 176 };
 177
 178 static void bind_tcs_images(struct st_context *st)
 179 {
 180    struct gl_shader_program *prog =
 181       st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_CTRL];
 182
 183    if (!prog)
 184       return;
 185
 186    st_bind_images(st, prog->_LinkedShaders[MESA_SHADER_TESS_CTRL], PIPE_SHADER_TESS_CTRL);
 187 }
 188
 189 const struct st_tracked_state st_bind_tcs_images = {
 190    "st_bind_tcs_images",
 191    {
 192       0,
 193       ST_NEW_TESSCTRL_PROGRAM | ST_NEW_IMAGE_UNITS,
 194    },
 195    bind_tcs_images
 196 };
 197
 198 static void bind_tes_images(struct st_context *st)
 199 {
 200    struct gl_shader_program *prog =
 201       st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_EVAL];
 202
 203    if (!prog)
 204       return;
 205
 206    st_bind_images(st, prog->_LinkedShaders[MESA_SHADER_TESS_EVAL], PIPE_SHADER_TESS_EVAL);
 207 }
 208
 209 const struct st_tracked_state st_bind_tes_images = {
 210    "st_bind_tes_images",
 211    {
 212       0,
 213       ST_NEW_TESSEVAL_PROGRAM | ST_NEW_IMAGE_UNITS,
 214    },
 215    bind_tes_images
 216 };
 217
 218 static void bind_cs_images(struct st_context *st)
 219 {
 220    struct gl_shader_program *prog =
 221       st->ctx->_Shader->CurrentProgram[MESA_SHADER_COMPUTE];
 222
 223    if (!prog)
 224       return;
 225
 226    st_bind_images(st, prog->_LinkedShaders[MESA_SHADER_COMPUTE], PIPE_SHADER_COMPUTE);
 227 }
 228
 229 const struct st_tracked_state st_bind_cs_images = {
 230    "st_bind_cs_images",
 231    {
 232       0,
 233       ST_NEW_COMPUTE_PROGRAM | ST_NEW_IMAGE_UNITS,
 234    },
 235    bind_cs_images
 236 };